Jet of rain type condenser



u w w. M 0 2 1 p 3. H v, 9 1. V v O I N d .m n m P m d R 9 Ell w I w n 0 mw ETH. mm i m DI u m PHIILP E. REYNOLDS, OF DUNELLEN, NEW JERSEY.

JET 0B RAIN TYPE CONDENSER.

Specification of Letters ?ateut.

Patented Nov. 9, 1.920.

Application filed September 19, 1919. Serial No. 324,958.

To all whom it may concern.

Be it known that I, PHILIP E. REYNOLDS, a citizen of the United States, and a resident of Dunellen, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Jet or Rain Type Condensers, of which the following is a specification.

The invention relates to improvements in apparatus for condensing exhaust steam, more particularly to apparatus of the jet condensing or rain type, in which the steam or vapor and the condensing water are brought into intimate contact with each other, and the water of condensation removed through the overbalancing of the barometric column of water in a tail-pipe connected to the condensing chamber and terminating, for example, in a hot-well from which the condensate and ejected discharge are removed in any wellknown manner. It has for its object, in condensing apparatus of these types, to simultaneously effect the discharge of accumulated air and other noncondensable vapors in a simple and efficient manner.

I am aware that it has been proposed to effect this discharge of the air and noncondensable vapors by providing, intermediate the condensing chamber and hot-well, a contracted or throat portion in the tailpipe and directing the condensing water into an annular space at the upper part of said contracted or throat portion. Such apparatus, however, requires the use of large quantities of water and the discharge of same in such bulk as to diminish the mixing effect through not being thoroughly broken up.

In accordance with the present invention, a contracted or throat portion is similarly provided in the upper part of the tail-pipe, but the accumulated air and other noncondensable vapors are caused to be discharged directly into said contracted or throat portion through the action of a steam ejector preferably of the single stage type which operates substantially at the said contracted portion, whereby the air and non-condensable vapors accumulating in the condensing chamber are entrained in the comparatively large body of condensing water and discharged with same into the hot-well or other outlet at the lower end of the tailpipe. A single stage steam ejector has been 13 discharge into found very efficient and economical for this removal of air and non-condensable vapors, only a comparatively small amount of steam being necessary for the operation thereof.

In the accompanying drawings, whic illustrate the invention- Figure 1 is a partial vertical section of a condensing chamber and tail-pipe with a contracted or throat portion provided in the latter and a steam ejector arranged to be connected thereto.

Fig. 2 is a fragmentary view illustrating a modification.

Similar characters of reference designate corresponding parts throughout the severa views.

Referring to the drawings, 10 designates a condensing chamber to which condensing water in jet form is delivered in well-known manner, said condensing chamber at its lower portion being connected to a tail-pipe 11 which, in turn, terminates, for example, in a hot-well 12 from which the condensing water and condensate are removed in any well-known manner. A multi-stage steam ejector comprising the two members 13 and 14, the latter of which is preferably of greater capacity than the former, are arranged to be connected through the pipe 15 with said condensing chamber 10 to provide the necessary vacuum therein for starting. The ejector 13, moreover, is arranged to be connected to the tail-pipe through a conduit 16 provided with a controlling valve 17 a further valve 18 being provided between the ejectors 1S and 14 to cut off the latter when it is desired to have the ejector the tail-pipe portion and after proper vacuum has been established in the condensing chamber 10. V

The upper portion of the tail-pipe 11 is contracted, as shown in Fig. 2, or, preferably, provided with a throat portion or venturi 20 having a series of circumferential perforations 21, the interior of the throat portion, therefore, being in communication with the ejector 13. Or, as shown in ig. 2, the ejector nozzle 22 terminates directly within the contracted portion 23 of said tailpipe 11. In this manner, when the valve 17 is open, the ejector 13 is permitted to operate substantially at the contracted portion of the tail-pipe noncondensable vapors accumulating in the condenslng chamber 10, due to leakage or to 11. Any air or other discharge air the air which is present in the condensing water, will be drawn through said contracted portion into the tail-pipe 11 and eventually discharged therefrom. The installation of apparatus of this character results in a material reduction of the steam consumption, the same being approximately one-eighth of that required heretofore. Moreover, the construction of the apparatus is extremely simple, and its operation involves noparticular skill. The apparatus is of comparatively light weight, does not require any appreciable space and, having no moving parts, lubrication is dispensed with.

I claim:

1. In a jet or rain type condenser, embodying a condensing chamber, and a tailpipe provided with a contracted or throat portion: means located at said contracted or throat portion to discharge air and noncondensa ble vapors therethrough into said tail-pipe.

2. In a bodying a jet or rain type condenser, emcondensing chamber, and a tailplpe provided with a contracted or throat portion: means located at saidcontracted or throat portion and communicating therewith to discharge air and non-condensable vapors therethrough into said tail-pipe.

3. In a jet or rain type condenser, embodying a condensing chamber, and a tailpipe provided with a contracted or throat portion: a steam ejector communicating with said contracted or throat portion to and non-condensable vapors therethrough into said tail-pipe.

4. In a jet or rain type condenser, em-

bodying a condensing chamber, a tailpipe and hot-well and a contracted or throat portion in said tailpipe intermediate the condensing chamber and hot-well: means 10-- cated at said contracted or throat portion to discharge air and non-condensable vapors therethrough into the tail-pipe.

' 5. In a' jet or rain type condenser, embodying a condensing chamber, a tail-pipe and hot-well and a contracted or throat portion in said. tail-pipe intermediate the con densing chamber and hot-well a single stage steam ejector located at said contracted or throat portion to discharge air and non-condensable vapors therethrough into the tailpipe. V

6. In arjet or rain type condenser, 'em bodying a condensing chamber, a tail-pipe having a contracted or throat portion provided with a series of circumferential perforations: a steam ejector connected with said tail pipe substantially at said contracted or throat portion and communicating with the interior thereof through said perforations to discharge air a nd'other noncondensable vaporsinto the tail-pipe. V 7. In a jet'or rain type condenser, embodying a condensing chamber, and a tailpipe provided. with a contracted. or throat portion: a plurality of steam ejectors adapted to be connected with said condensing chamber, and one of same with said contracted or throat portion. 7 w

8. In a jetor rain typecondenser, em bodying a condensing chamber, and a tailpipe provided with a contracted or throat portion: two steam ejectors operating in series, one connecting directly with the condensing chamber and adapted to be connected. to the said contracted or throat portion, and the other being adapted to be shut off from the first. V

Signed at New York, in the county of New York and State of New York this 8th 7 day of Sept. A. 111919;

PHILIP E. REYNOLDS. 

